OK, I give up now. After a week of back and forth with an open ticket, I've come to the conclusion that whilst there is a way to do what I want, LP support is not going to assist. Yes, I am frustrated and yes, I've noted that in my open ticket. Just to vent, below is a sample of the responses I've received on this ticket.
"If they are working on 2 accounts on the same server it should be a difference in server configuration and I suspect it may be related to the file name
." [ presumably NOT a difference in server configuration, since the two accounts are on the same server.
I then asked : "I therefore have a question which needs a simple YES or NO response ... is it possible to upload root.war only and have Resin expand that as it does with other WAR files?"
The response: "We really apologize for the inconvenience. I was able to extra .war file. Please only put one root.war file, either in cap or in lower case
." This was followed by
root@happy [/home/lcgrr0/public_html/webapps]# jar xvf root.war
presumably an indication that a shell command is needed to manually extract info. Not helpful if one doesn't have shell access.
I asked : "1) Is it possible and permitted on the Lunarpages servers to upload a .war file and access the content using a simple Uniform Resource Locator (like http://www.lcgrr.org) without a path (like ../foobar)? 2) If it is possible, please confirm the exact name of the .war file to be used (root.war, ROOT.war, something else)?
The response: "We really apologize for the inconvenience. I have checked that your ROOT.war file is not deploying in any resin 3.x based server, Where test .war file is extracting very easily. For Resin packaging/deployment I advise you to visit http://www.caucho.com/resin/admin/deploy.xtp
" Yes, I knew that. The URL is a reference to the Caucho Resin 4.x help pages, also no help!
"Regarding your questions .1 , Yes You can deploy in document root. Your ROOT.war if not extracting by Resin Servants. Please check with the link iI given you above and let us know if that helps.
" It didn't. Partially because the response wasn't understandable. What about question 2?
And to close, the message ended "If you have any questions, please don't hesitate to ask us, we will be happy to answer them. Please feel free to contact us for further help. We are committed to making your hosting experiences pleasant and fulfilling.
Seriously, boilerplate platitudes aren't so helpful. This experience has been neither pleasant nor fulfilling.
There, I feel better now. Not that I expect a response, given the liveliness of this forum, but you never know. If anyone does know the secret of how to deploy a WAR file that is accessible without a path suffix to the URL, I'd be pleased to hear it.